🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.42 AU - 0.68 AU

Year: 177 Days

Day: 31.6 Hours

Environment

Temp: 14 °C

Axial Tilt: 45.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.52 AU - 0.6 AU

Year: 182 Days

Day: 36.4 Hours

Environment

Temp: 37 °C

Axial Tilt: 0 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.58 AU - 0.62 AU

Year: 201 Days

Day: 26 Hours

Environment

Temp: 11 °C

Axial Tilt: 38.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.66 AU - 0.68 AU

Year: 238 Days

Day: 26 Hours

Environment

Temp: 17 °C

Axial Tilt: 0.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 39,229,029 km

• M1: 177,872 km (0.038 R)
• M2: 341,532 km (0.052 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.82 AU - 2.04 AU

Year: 1162 Days

Day: 31.5 Hours

Environment

Temp: -107 °C

Axial Tilt: 27.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.76 AU - 2.9 AU

Year: 1542 Days

Day: 21.6 Hours

Environment

Temp: -125 °C

Axial Tilt: 11 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.5

Radius: 13.5

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 3.36 AU - 4.94 AU

Year: 3665 Days

Day: 8.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (66)

Outer Limit: 39,229,029 km

• M1: 170,093 km (0.069 R)
• M2: 291,117 km (0.039 R)
• M3: 534,513 km (0.071 R)
• M4: 721,810 km (0.119 R)
• M5: 1,115,402 km (0.054 R)
• M6: 1,418,936 km (0.035 R)
• M7: 1,870,273 km (0.113 R)
• M8: 2,025,406 km (0.069 R)
• M9: 2,348,986 km (0.07 R)
• M10: 2,568,446 km (0.036 R)
• M11: 3,455,860 km (0.117 R)
• M12: 3,609,348 km (0.114 R)
• M13: 3,863,814 km (0.082 R)
• M14: 4,348,960 km (0.119 R)
• M15: 4,535,957 km (0.107 R)
• M16: 4,939,722 km (0.1 R)
• M17: 5,135,097 km (0.113 R)
• M18: 5,377,295 km (0.094 R)
• M19: 6,126,781 km (0.079 R)
• M20: 6,764,517 km (0.118 R)
• M21: 7,201,492 km (0.084 R)
• M22: 7,849,101 km (0.081 R)
• M23: 8,308,367 km (0.114 R)
• M24: 8,515,260 km (0.119 R)
• M25: 8,855,296 km (0.085 R)
• M26: 9,119,785 km (0.092 R)
• M27: 9,467,750 km (0.036 R)
• M28: 9,575,610 km (0.057 R)
• M29: 9,765,450 km (0.12 R)
• M30: 9,929,259 km (0.064 R)
• M31: 10,370,424 km (0.048 R)
• M32: 10,621,299 km (0.063 R)
• M33: 10,818,020 km (0.048 R)
• M34: 11,674,319 km (0.086 R)
• M35: 11,848,151 km (0.093 R)
• M36: 11,993,860 km (0.065 R)
• M37: 12,879,778 km (0.061 R)
• M38: 12,999,457 km (0.071 R)
• M39: 13,330,666 km (0.031 R)
• M40: 13,482,209 km (0.113 R)
• M41: 13,756,272 km (0.041 R)
• M42: 14,341,050 km (0.105 R)
• M43: 14,714,447 km (0.086 R)
• M44: 15,091,284 km (0.117 R)
• M45: 15,280,824 km (0.093 R)
• M46: 15,502,977 km (0.069 R)
• M47: 15,598,570 km (0.094 R)
• M48: 15,982,737 km (0.063 R)
• M49: 16,175,868 km (0.068 R)
• M50: 16,369,897 km (0.077 R)
• M51: 17,583,584 km (0.107 R)
• M52: 17,683,216 km (0.082 R)
• M53: 17,849,868 km (0.106 R)
• M54: 18,050,329 km (0.035 R)
• M55: 18,758,227 km (0.119 R)
• M56: 19,509,507 km (0.057 R)
• M57: 20,235,805 km (0.114 R)
• M58: 20,654,828 km (0.077 R)
• M59: 20,795,151 km (0.118 R)
• M60: 20,935,923 km (0.089 R)
• M61: 21,857,745 km (0.094 R)
• M62: 23,338,315 km (0.07 R)
• M63: 23,447,970 km (0.117 R)
• M64: 23,814,485 km (0.111 R)
• M65: 23,998,640 km (0.069 R)
• M66: 24,813,948 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204.1

Radius: 3.8

Gravity: 14.13 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 8.61 AU - 11.25 AU

Year: 13564 Days

Day: 21.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (58)

Outer Limit: 39,229,029 km

• M1: 75,248 km (0.116 R)
• M2: 566,527 km (0.112 R)
• M3: 1,304,942 km (0.035 R)
• M4: 1,476,681 km (0.107 R)
• M5: 1,535,622 km (0.082 R)
• M6: 1,696,440 km (0.08 R)
• M7: 2,055,924 km (0.081 R)
• M8: 2,484,671 km (0.026 R)
• M9: 2,940,346 km (0.096 R)
• M10: 3,089,495 km (0.101 R)
• M11: 3,421,154 km (0.111 R)
• M12: 3,473,214 km (0.093 R)
• M13: 3,551,753 km (0.108 R)
• M14: 4,369,155 km (0.112 R)
• M15: 5,152,151 km (0.041 R)
• M16: 5,362,036 km (0.032 R)
• M17: 6,453,353 km (0.114 R)
• M18: 7,007,314 km (0.104 R)
• M19: 7,239,939 km (0.074 R)
• M20: 7,508,766 km (0.077 R)
• M21: 7,883,808 km (0.108 R)
• M22: 8,369,851 km (0.073 R)
• M23: 8,794,260 km (0.087 R)
• M24: 9,663,723 km (0.078 R)
• M25: 10,522,265 km (0.098 R)
• M26: 10,560,263 km (0.111 R)
• M27: 10,788,400 km (0.108 R)
• M28: 12,752,919 km (0.077 R)
• M29: 13,036,557 km (0.115 R)
• M30: 13,240,459 km (0.089 R)
• M31: 13,445,557 km (0.117 R)
• M32: 15,595,279 km (0.066 R)
• M33: 15,638,513 km (0.075 R)
• M34: 15,681,746 km (0.053 R)
• M35: 15,855,130 km (0.074 R)
• M36: 17,578,647 km (0.045 R)
• M37: 18,166,268 km (0.112 R)
• M38: 18,394,105 km (0.106 R)
• M39: 18,622,691 km (0.109 R)
• M40: 20,722,596 km (0.062 R)
• M41: 21,583,382 km (0.112 R)
• M42: 22,407,068 km (0.06 R)
• M43: 22,994,539 km (0.069 R)
• M44: 23,290,144 km (0.075 R)
• M45: 24,636,226 km (0.106 R)
• M46: 26,779,515 km (0.089 R)
• M47: 27,038,618 km (0.114 R)
• M48: 28,188,727 km (0.062 R)
• M49: 28,346,702 km (0.105 R)
• M50: 29,194,623 km (0.056 R)
• M51: 29,514,762 km (0.104 R)
• M52: 32,282,173 km (0.089 R)
• M53: 33,668,646 km (0.035 R)
• M54: 35,927,125 km (0.119 R)
• M55: 36,671,674 km (0.037 R)
• M56: 36,729,120 km (0.104 R)
• M57: 38,059,493 km (0.07 R)
• M58: 38,175,881 km (0.097 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 193 - 12,000 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit